Once that's done, you can place the piece on the quilt.
Pieces will snap to the grid, so if you need it to be more granular, decrease your grid size. If you're only using large pieces you can use a larger grid size.
All measurments are in inches
Double-click a fabric swatch to make it transparent.
Click block preview to rotate it
Add fabrics to the "Fabrics in Use" section, then drag them into the "Block Design" section.